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See detailEnergy Dissipation in Saturn’s Magnetotail: A Comparative Magnetotail Approach
Yao, Zhonghua ULg; Coates, Andrew; Ray, Licia et al

Poster (2016, December 16)

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See detailEnergy dissipation on a stepped spillway downstream of a Piano Key Weir - Experimental study
Erpicum, Sébastien ULg; Daux, Christophe; Machiels, Olivier ULg et al

in Erpicum, Sébastien; Laugier, Frederic; Boillat, Jean Louis (Eds.) et al Labyrinth and Piano Key Weirs - PKW 2011 (2011)

Piano Key Weir (PKW) is a new type of weir showing appealing hydraulic capacities. Its specific geometric features create different interacting flows and jets downstream of the structure. This suggests ... [more ▼]

Piano Key Weir (PKW) is a new type of weir showing appealing hydraulic capacities. Its specific geometric features create different interacting flows and jets downstream of the structure. This suggests that the use of a PKW to control the flow upstream of a stepped spillway may help in enhancing energy dissipation on the downstream channel. The first results of an experimental study carried out at the Laboratory of Engineering Hydraulics – HACH in the scope of a Coyne & Bellier – Tractebel Engineering project are presented in the paper. The goal of the study was to compare the energy dissipation on a stepped spillway downstream of a PKW with the one which takes place on the same spillway equipped with a standard ogee-crested weir. Despite similar global energy dissipation rates whatever the weir type due to the relative important height of the spillway, significant differences in the aeration of the flow along the spillway have been shown. This paves the way to further investigations. [less ▲]

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See detailEnergy Efficiency in the Romanian Residential Building Stock: A Literature Review
Muresan, Adina Ana; Attia, Shady ULg

in Renewable and Sustainable Energy Reviews (2017), 74

The building sector in Romania is dominated by residential buildings that are old and have poor thermal performance. As member of the European Union, Romania has to reach the objectives imposed by the ... [more ▼]

The building sector in Romania is dominated by residential buildings that are old and have poor thermal performance. As member of the European Union, Romania has to reach the objectives imposed by the Directive 2009/28/EC and to fulfill the requirements of the Energy Performance of Buildings Directive (EPBD) by year 2020. To reach the 2020 objectives, the old buildings from the Romanian building stock should be rehabilitated and the new buildings should be designed according to the latest thermal performance characteristics. The following paper presents the literature review of building energy performance in Romania. The purpose of the literature review analysis is to provide an overview on current building energy efficiency in Romania. The paper also presents future perspectives on implementation of high performance buildings such as the Passive House (PH), nearly Zero Energy Buildings (nZEB) and Net Zero Energy Buildings (NZEB). The reviewed publications and case studies are classified under three categories: policy and regulations, technology and feasibility. Finally, the paper presents a holistic perspective on the Strength, Weakness, Opportunities and Threats (SWOTs) of energy efficiency in Romania's residential building sector. [less ▲]

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See detailEnergy efficiency of sludge drying processes
Léonard, Angélique ULg; Crine, Michel ULg; Arlabosse, Patricia

Conference (2011, November 17)

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See detailEnergy expenditure of critically ill neonatal foals.
Jose-Cunilleras, E.; Viu, J.; Corradini, I. et al

in Equine veterinary journal. Supplement (2012), (41), 48-51

REASONS FOR PERFORMING STUDY: Nutritional support in critically ill neonatal foals is of great importance given their high metabolic rate and minimal stores of energy and protein. Nutrient requirements of ... [more ▼]

REASONS FOR PERFORMING STUDY: Nutritional support in critically ill neonatal foals is of great importance given their high metabolic rate and minimal stores of energy and protein. Nutrient requirements of healthy growing foals have been estimated based on daily milk intake; however, little is known about the resting energy expenditure (REE) of sick foals. OBJECTIVES: To determine REE in critically ill neonatal foals (sepsis and/or hypoxic-ischaemic encephalopathy [HIE] and compare this with REE in control foals. METHODS: Critically ill newborn foals admitted to the Fundacio Hospital Clinic Veterinari, Universitat Autonoma de Barcelona, Spain from March 2009 to February 2011 were included in this study. Healthy neonatal foals and foals with nonsystemic conditions were used as controls. Oxygen consumption and CO2 production were measured with a respiratory monitor connected to a tight fitting facemask and REE (kcal/kg bwt/day) was calculated with the abbreviated Weir formula. Measurements were performed within 24 h of admission and repeatedly during hospitalisation. RESULTS: Twenty-seven foals were included (16 critically ill foals and 11 controls) and a total of 47 measurements were performed. In the critically ill, REE was reduced (mean +/- s.e. 49.5 +/- 2.1 kcal/kg bwt/day) on admission relative to the controls. In surviving foals (n = 5), REE before hospital discharge was not different (68.4 +/- 7.0 kcal/kg bwt/day) from control foals (64.8 +/- 2.7 kcal/kg bwt/day). CONCLUSIONS: REE was lower in critically ill foals upon admission (40-50 kcal/kg bwt/day) and normalised before hospital discharge (60-80 kcal/kg bwt/day). POTENTIAL RELEVANCE: Critically ill neonatal foals tolerating enteral feeding would receive approximately their REE when given 10% of their bodyweight in mare's milk daily. For sick neonates unable to tolerate enteral nutrition, provision of 50 kcal/kg bwt/day would be a reasonable goal for parenteral nutrition. [less ▲]

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See detailEnergy from photobioreactors: Bioencapsulation of photosynthetically active molecules, organelles, and whole cells within biologically inert matrices
Rooke, J. C.; Meunier, C.; Léonard, Alexandre ULg et al

in Pure & Applied Chemistry (2008), 80(11), 2345-2376

Photosynthesis is a highly efficient solar energy transformation process. Exploiting this natural phenomenon is one way to overcome the shortage in the Earth's fuel resources. This review summarizes the ... [more ▼]

Photosynthesis is a highly efficient solar energy transformation process. Exploiting this natural phenomenon is one way to overcome the shortage in the Earth's fuel resources. This review summarizes the work carried out in the field of photobioreactor design via the immobilization of photosynthetically active matter within biologically inert matrices and the potential biotechnological applications of the obtained hybrid materials within the domain of solar energy to chemical energy transformation. The first part deals with the design of artificial photosynthetic reaction centers (RCs) by the encapsulation of pigments, proteins, and complexes. The action of thylakoids, chloroplasts, and whole plant cells, immobilized in biocompatible supports, in the conversion of CO 2 into chemical energy, is also addressed. Finally, the latest advances in the exploitation of the bioactivity of photosynthetically active micro-organisms are explored in terms of the production of secondary metabolites and hydrogen. © 2008 IUPAC. [less ▲]

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See detailEnergy harvesting from galloping of prisms: A wind tunnel experiment
Hémon, Pascal; Amandolèse, Xavier; Andrianne, Thomas ULg

in Journal of Fluids & Structures (2017), 70

We study the energy harvesting from the galloping oscillations of rigid prisms flexibly mounted in a wind tunnel. A square section and a 2/3 rectangular section are tested and the inclination angle of the ... [more ▼]

We study the energy harvesting from the galloping oscillations of rigid prisms flexibly mounted in a wind tunnel. A square section and a 2/3 rectangular section are tested and the inclination angle of the prisms referred to the flow direction is optimally adapted. The energy harvester is based on magnets moving with the prism in the front of a coil-core at rest. Energy is dissipated in a load resistance for which an optimal value is found. Efficiency of the "prism wind turbine" is weak compared to usual wind turbine due to the physics of the galloping mechanism. However such systems remain interesting for their potential of adaptation to various situations. [less ▲]

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See detailEnergy hypersurface local properties of the O2HF-1 rearrangement
Dive, Georges ULg; Dehareng, Dominique ULg; Culot, Patrick et al

in Chemical Physics Letters (1992), 195(2-3), 189-193

This work analyses a case where Murrell's proposal, stating that a second-order point must lie above a first-order one, is apparently violated. Study at the SCF-UMP2 level within the D95 + + basis set, of ... [more ▼]

This work analyses a case where Murrell's proposal, stating that a second-order point must lie above a first-order one, is apparently violated. Study at the SCF-UMP2 level within the D95 + + basis set, of one critical point of the O2HF- anion, previously proposed to be of order two by Lopez, shows the importance of the electronic correlation. The critical point associated with the (2)PI first-order ones. The present analysis reveals that this contradistinction can be explained by three unconsidered elements: the local symmetry, the electronic correlation and the internal variables description. [less ▲]

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See detailEnergy levels and oscillator strengths for gallium-like ions (Br V- In XIX)
Biémont, Emile ULg; Quinet, Pascal ULg

in Journal of Quantitative Spectroscopy & Radiative Transfer (1990), 44

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See detailEnergy levels and oscillator strengths for transitions in Pd II
Quinet, Pascal ULg

in Physica Scripta (1996), 54

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See detailEnergy levels and transition probabilities along the zinc isoelectronic sequence
Biémont, Emile ULg; Quinet, Pascal ULg; Fawcett, B C

in Physica Scripta (1989), 39

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See detailEnergy Levels in Ar II
Quinet, Pascal ULg; Palmeri, P.; Biémont, Emile ULg et al

in Physical Review. A (1994), 49

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See detailEnergy levels of High l - States in Neutral and Singly Ionized Argon
Palmeri, P.; Biémont, Emile ULg

in Physica Scripta (1995), 51

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See detailEnergy metabolism and sympathetic activity in insulin resistance
Tappy, L.; Paquot, Nicolas ULg

in Draznin, B.; Rizza, R. A. (Eds.) Clinical Research in Diabetes (1997)

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See detailAn energy momentum conserving algorithm using the variational formulation of visco-plastic updates
Noels, Ludovic ULg; Stainier, Laurent ULg; Ponthot, Jean-Philippe ULg

in International Journal for Numerical Methods in Engineering (2006), 65(6), 904942

In this paper we use the variational formulation of elasto-plastic updates proposed by Ortiz and Stainier (Comput. Methods Appl. Mech. Eng. 1999; 171:419-444) in the context of consistent time integration ... [more ▼]

In this paper we use the variational formulation of elasto-plastic updates proposed by Ortiz and Stainier (Comput. Methods Appl. Mech. Eng. 1999; 171:419-444) in the context of consistent time integration schemes. We show that such a formulation is well suited to obtain a general expression Of energy momentum conserving algorithms. Moreover, we present numerical examples that illustrate the efficiency of our developments. Copyright (c) 2005 John Wiley [less ▲]

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See detailEnergy Partitioning Between Latent And Sensible Heat Flux During The Warm Season At Fluxnet Sites
Wilson, Kell B.; Baldocchi, Dennis D.; Aubinet, Marc ULg et al

in Water Resources Research (2002), 38(12),

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See detailThe Energy Performance Certification: A tool for smarter cities?
Monfils, Stéphane ULg; Hauglustaine, Jean-Marie ULg

Conference (2014, December)

One of the existing tools that could help creating smart cities is the Energy Performance Certification (EPC) of residential buildings, by introducing energy efficiency as a comparative criterion for real ... [more ▼]

One of the existing tools that could help creating smart cities is the Energy Performance Certification (EPC) of residential buildings, by introducing energy efficiency as a comparative criterion for real-estate purchase choices, influencing real-estate market value, stimulating energy saving investments, moving the housing market towards greater energy efficiency and creating comprehensive databases which are fundamental for shaping smart strategies on urban, regional and national levels. The impact on potential buyers or tenants is crucial in order to reach these goals but EPC’s results, in their actual form, do not help raise people awareness: often distant from reality, overestimating consumption, they usually result is a general misunderstanding and misuse of the document. This study aims at verifying that the actual calculation method used in certification could approach real building consumption, by using additional data on occupant behaviour and household characteristics. It first presents the concepts behind smart cities, then an overview of the uncertainties that weight on the Belgian certification calculation method parameters. It also presents variations that could be applied to the EPC calculation method in order to add behavioural parameters… inspired from case studies of buildings. [less ▲]

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